31 results about "Surface measurement" patented technology

The application discloses a structure thermal conductivity and thermal diffusivity spatial distribution field inversion system and method, and belongs to the technical field of material thermal physical property testing. The system comprises a temperature data acquisition module, a data processing module and a parameter output module. The core lies in that a trained double-branch physical information neural network model is adopted, the model comprises a temperature field branch network and an inversion parameter branch network which are correlated with each other, and a heat conduction physical law is embedded as a constraint condition in the training process. The method is applied to the inversion system. The application can directly and efficiently invert the three-dimensional spatial distribution field of the internal thermal conductivity and thermal diffusivity of a structure to be measured only by using sparse space-time temperature data of the surface of the structure to be measured, so that the real and complex thermal physical property parameter heterogeneity in the material is revealed, and a technical breakthrough from surface measurement to internal parameter full-field high-resolution reconstruction is realized.

This invention relates to the field of measurement platform technology, specifically a measurement platform with a leveling system, comprising: a base, a support frame fixed to the surface of the base, an adjustment seat provided on the surface of the support frame, a flip plate provided on the surface of the adjustment seat, a fixing ring provided on the surface of the flip plate, a first crossbar inserted into the end of the flip plate, a second crossbar fixed to the other end of the first crossbar, a nut provided on the surface of the second crossbar, a horizontal plate provided on the surface of the second crossbar, a connecting rod fixed to the end of the horizontal plate, and a pressing block provided at the other end of the connecting rod; the beneficial effect is that after the horizontal plate is pushed by the nut, it moves against the direction of the adjustment seat, and the horizontal plate drives the pressing block to move through the connecting rod, and the pressing block presses down on the surface of the force-bearing rod, so that the two sets of force-bearing rods drive the flip plate to stabilize on the surface of the adjustment seat, and the position of the fixing ring can also be stabilized when the measuring instrument is fixed on the surface of the fixing ring.

Systems, methods, and apparatuses include a health parameter detection apparatus. The apparatus includes a platform having a measurement surface, the measurement surface being a first surface. The measurement surface is operable to contact a target area of a user. The apparatus includes one or more light sources disposed proximate to a transparent material and operable to transmit light into the transparent material. The apparatus further includes an internal mirror forming a first angle with the measurement surface and / or a camera such that the camera is operable to receive scattered light caused by frustrated total internal reflection (FTIR) occurring on the measurement surface and reflected from the mirror. The platform can form a portion of at least one of a treadmill, an elliptical machine, a rowing machine, a stair-stepper, or a leg press machine.

This invention discloses a visibility estimation method and apparatus based on binocular vision. The method includes: simultaneously acquiring left and right views using a calibrated binocular camera; inputting the image pairs into a stereo matching deep neural network to obtain a disparity map and converting it into a depth map; inputting the left view and depth map into a dual-branch deep convolutional neural network to extract multi-scale features; fusing RGB features and depth features through a cross-modal feature fusion module; and finally outputting a visibility estimate through a feature aggregation and regression module. The apparatus includes a binocular image acquisition unit, a data processing and visibility estimation unit, and a result output unit. This invention solves the depth ambiguity problem of monocular vision by fusing binocular depth information and image appearance information, achieving high-precision, non-contact visibility surface measurement. It has the advantages of low cost and flexible deployment, and is suitable for visibility monitoring in traffic scenarios such as highways.

This invention discloses a method for measuring the elevation of the lower roller of a leveling machine using a total station. The measurement process is as follows: fabricating a fixture; installing the first leveling machine on the base, setting up the total station with the fabricated fixture, and measuring the z-axis coordinates of both sides of the lower roller; measuring the z-axis coordinates of the elevation reference point; similarly measuring the z-axis coordinates of all the first, second, and third leveling machines; calculating the deviation between the measured value and the design value of the upper surface of the lower roller according to the drawings; calculating the thickness of the shims; adjusting the shims, and then re-measuring after adjustment. The purpose of this invention is to provide a method for measuring the elevation of the lower roller of a leveling machine using a total station. This invention, through the use of a total station and fabricated fixture, completes the elevation measurement of the lower roller of the leveling machine, solving the problem that a level cannot measure this elevation.

This invention discloses a dynamic material thickness measurement device and method using a two-way laser beam, comprising a laser, a processing module, a first laser measurement unit, a second laser measurement unit, and a beam splitting module. The measuring optical axes of the first and second laser measurement units are coaxially arranged, and they are respectively aligned with the measurement points on the upper and lower surfaces of the workpiece under test. The beam splitting module divides the initial laser beam generated by the laser into a first measurement beam, a second measurement beam, a first reference beam, and a second reference beam. This invention employs a coaxial two-way laser beam arrangement with upper and lower laser measurement units, simultaneously detecting the measurement points on the upper and lower surfaces of the workpiece. The overall additional displacement caused by the bending and arching of the workpiece is synchronously reflected in the displacement data of the upper and lower surfaces. Subsequent data processing can accurately cancel out this interference component, eliminate deformation interference outside the thickness direction, and accurately separate deformation in the pure thickness direction, ensuring the accuracy and reliability of the thickness change detection results.

When performing calibration in two stages, if the reference image is formed at the same location on the intermediate transfer belt, the present invention provides an image forming apparatus that can perform the second adjustment with high accuracy. [Solution] The image forming apparatus comprises an image carrier, a charging device, an exposure device, a developing device, an intermediate transfer belt, a cleaning brush, an image density sensor, and a control unit. The control unit performs calibration including: a first adjustment step of adjusting the image forming conditions based on the detection result of a first reference image formed on the intermediate transfer belt; a first surface measurement step of detecting the formation region of the first reference image with the image density sensor after the execution of the first adjustment step; and a second adjustment step of changing the image forming conditions based on the detection result of a second reference image formed in the formation region of the first reference image after the execution of the first surface measurement step. If the output value of the image density sensor in the first surface measurement step is less than or equal to a threshold, the second adjustment step is executed.

The present application relates to a kind of radar sea surface target measurement error correction method and system based on AIS.The method comprises: obtaining radar sea surface measurement target and the AIS target corresponding thereto;Error coefficient is determined using least square method according to the above-mentioned target;The distance error of radar sea surface measurement target is estimated according to error coefficient;According to distance error, the corresponding rectangular coordinate system is established;According to the bearing of radar sea surface measurement target and the corresponding rectangular coordinate system, the acute angle obtained by the intersection of the straight line of the position point of the target after correction and the position point of radar sea surface measurement target and the longitude line where radar sea surface measurement target is located is estimated;The latitude and longitude error of radar sea surface measurement target is estimated according to distance error;The position of radar sea surface measurement target is corrected according to the bearing of radar sea surface measurement target and latitude and longitude error.Using the above method can solve the problem of measurement error when radar detects sea surface target, improve the identification accuracy of radar officer to sea surface target.

This invention discloses a prosthesis height measuring device and method, belonging to the field of medical device testing technology, for multi-point height measurement of femoral condyle prostheses. The device includes a positioning fixture, an adjustment fixture, and a measuring instrument. The positioning fixture has an adjustment platform for leveling the prosthesis. The adjustment fixture includes an adjustment frame and a multi-directionally movable mounting rod. The adjustment frame has a height adjustment mechanism and a mounting box that adjusts the height and horizontal extension length of the mounting rod. The measuring instrument is detachably mounted on the end of the mounting rod and can move synchronously. Through rapid coarse adjustment by the horizontal feed mechanism, vertical positioning by the height adjustment mechanism, fine adjustment by the mounting box, and angle deflection, the measuring end is accurately aligned with the preset measuring points on the prosthesis. This invention can stably establish a horizontal reference, achieve multi-dimensional fine adjustment, and effectively solve the problems of inaccurate positioning, large data deviation, and poor consistency in prosthesis surface measurement. It offers high measurement accuracy, convenient operation, and is suitable for high-precision testing of femoral condyle prostheses.

This application discloses a polishing apparatus and its control method. The polishing apparatus includes a polishing component, a measuring unit, and a control unit. The polishing component includes a polishing head and a polishing pad, the polishing head being used to press the wafer to be polished onto the surface of the polishing pad. The measuring unit is coupled to the polishing component and configured to determine an actual measured value, the actual measured value representing the actual contact area between the measuring unit and a portion of the polishing slurry output to the polishing component. The control unit is coupled to both the polishing component and the measuring unit and is configured to adjust the liquid flow rate of the polishing slurry based on the actual measured value. By configuring the above-described technical features, the accuracy of the liquid flow rate control of the polishing slurry during wafer polishing can be improved.

The utility model relates to detection equipment field, concretely to a kind of automatic code scanning and AI identification weighing equipment, including shelf main body, support rod and measuring box, support rod is fixedly connected in the upper surface of shelf main body, measuring box is fixedly connected in the upper surface of support rod, the inside of measuring box is installed with multiple code scanning identification cameras, the bottom surface of measuring box is equipped with symmetrical moving groove, the inner wall of moving groove is rotatably connected with screw rod, and one end of screw rod is fixedly connected with driving motor. Compared with prior art, the patent is provided with driving motor, screw rod, moving block, protective shell, cleaning sponge and moving assembly, driving motor drives screw rod to rotate, screw rod drives moving block and protective shell to move, protective shell drives cleaning sponge to clean the lens of code scanning identification camera, which can clean the lens after it is contaminated with dust, avoid affecting use, and moving assembly can disassemble and replace cleaning sponge, improve the technical problem of cleaning effect.

The application belongs to the technical field of elevator detection, and discloses an elevator car flat layer position detection device, which comprises a mounting frame, a threaded rod is rotatably arranged in the mounting frame, and a moving measurement assembly is slidably arranged in the mounting frame. The application cancels the fixed drawing backboard, reduces the space occupation during the detection of the elevator car flat layer, cooperates with the dynamic drawing assembly which automatically rotates, utilizes the triangular distribution mode, is longitudinally lengthened, realizes the arrangement of the large-length transfer paper, and enables the dynamic drawing assembly to move along with the moving measurement assembly, keeps rotating in the opposite direction during the movement, completes the surface measurement of the elevator car flat layer under the condition of the small workpiece proportion, greatly improves the detection range, avoids the situation that the fixed drawing paper occupies the long size and space and causes the local elevator car to be unable to be effectively detected, reduces the space proportion during the detection, has high detection precision, fast speed, and good detection effect.

The application provides a method for inverting medium parameters and target position of solid-solid layered medium, comprising the following steps: step 1: measuring the sound velocity of the head wave of the upper solid medium by placing two rectangular piezoelectric transducers on the surface of the solid-solid layered medium; step 2: placing a linear array transducer array on the surface of the solid-solid layered medium for detection, and quantitatively characterizing the position and shape of the interface by using an imaging diagram; step 3: comparing the difference between the measured travel time and the predicted travel time of each interface reflection wave mode to estimate the shear wave sound velocity of the upper solid medium; step 4: screening the target scattering wave from the received multiple echoes, and inverting the longitudinal and transverse wave sound velocities of the lower medium by taking the minimum variance of the target possible point distribution group as the measurement standard; and step 5: the center position of the target possible point distribution group is the positioning result of the target. The technical scheme of the application solves the problem of target positioning of the solid-solid layered medium in the prior art.

This invention belongs to the field of optical precision measurement technology, specifically a phase deflection calibration method based on shear error matching. In the phase deflection calibration process, this invention constructs a pair of shear wavefronts through the spatial translational motion of a reference mirror. Using the normal vector as the evaluation target, two sets of evaluation functions are designed: normal vector error and shear wavefront matching error. Simultaneously, the principle of normal mapping is utilized to accelerate the iterative process of non-planar tracing. Compared with traditional methods, this invention achieves higher precision optical surface reconstruction with a limited number of calibrations and finite pose changes. This invention simplifies the deflection measurement calibration process and enables high-precision surface measurement; it has broad application prospects in the field of optical measurement.

This invention provides a high-efficiency graphite specific surface area measuring device, relating to the field of graphite measurement technology. It includes a main body, control components, auxiliary components, and measuring components. The main body has an L-shaped structure, with a rectangular worktable on its top, the top of which is graduated. A measuring plate is slidably connected to the top of the worktable, and the measuring plate is telescopic. The control components are located on both sides of the top of the worktable on the main body, and are wedge-shaped. Two sets of auxiliary components are located on both sides of the top of the main body, and are U-shaped, with graduations on their inner sides. The measuring component is located above the main body, with one end inserted into the auxiliary component. This invention solves the problem that existing high-efficiency graphite specific surface area measuring devices are inconvenient to simultaneously measure the length, width, and height of the specific surface area, requiring three separate measurements, wasting considerable time and making them inconvenient to use.

A method for accuracy simulation analysis of a multi-camera rapid surface measurement system effectively solves the problem of accuracy simulation analysis for such systems. It enables the planning, design, and evaluation of the measurement mesh for the system, using the optimal mesh parameters as a reference to guide the on-site construction of the system and ensure accurate measurement of antenna surfaces. The method involves first building simulation analysis software; then, combining the actual on-site measurement environment, the software simulates and analyzes different measurement meshes; next, the rapid surface measurement system is constructed; finally, data is collected and analyzed, and the simulation software is used to perform accuracy simulation analysis of the multi-camera rapid surface measurement system, ensuring accurate measurement. This invention offers low measurement cost, saves manpower and resources, has high measurement speed and accuracy, and has practical application and promotion value.

The application discloses a kind of structure light super depth-of-field measurement systems based on focusing and defocusing algorithm, it is related to precision measurement technical field, including: measured object, microscopic objective, linear motor, structure light projector, light splitting prism, tube lens and high-speed industrial camera composition.The linear motor drives microscopic objective longitudinal layered scanning, projector synchronous projection phase shift grating stripe, after collimating by prism reflection, object collimate after being vertically irradiated measured object surface, reflected light is focused to camera again by objective, prism and tube lens.By layer-by-layer acquisition different focal plane image, the change curve of each pixel modulation is analyzed, combined with modulation demodulation and peak positioning algorithm, the best focusing height is solved, three-dimensional coordinate is acquired, and finally the three-dimensional topographic image of measured object is reconstructed.The application aims at solving the technical problems that existing super depth-of-field three-dimensional measurement technology fails to measure featureless surface, precision and efficiency are difficult to consider.

This invention provides a wireless monitoring system for deep deformation of concrete cracks, belonging to the field of civil engineering structural health monitoring technology. It includes a built-in passive sensing unit, an external wireless detection unit, and a cloud-based data analysis and inversion platform. The built-in passive sensing unit comprises a ferromagnetic sensing metal strip and a positioning structure. The external wireless detection unit includes a signal transmitting module. The cloud-based data analysis and inversion platform includes a signal receiving module and a main control processor. The signal transmitting module transmits electromagnetic wave signals to the concrete structure. This invention directly senses deep deformation of cracks through the embedded metal strip, rather than relying on surface inference or passively receiving weak signals. The metal strip and concrete deform in tandem, accurately reflecting the true deformation of cracks at depth, overcoming the limitations of traditional technologies that can only perform surface measurements or depth estimations. This invention also relates to a monitoring method for this wireless monitoring system for deep deformation of concrete cracks.

The application discloses a verticality instrument, belongs to the technical field of measurement / testing instruments, and is characterized in that a small reflector is installed on a vertical axis of a crosshair laser vertical alignment device and a detected plane, an outer end of a laser pen guide line is connected with a crosshair laser pen generator, a positioning sleeve is installed on the outer circle of the crosshair laser vertical alignment device, and a crosshair laser reflection receiver is installed at the lower end of the crosshair laser vertical alignment device. The basic principle that a light beam is reflected back along the original path when the light beam is used to irradiate a vertical surface is used, the cross section characteristics of the light beam of the crosshair are used, four laser sensing elements around the periphery of four uniform light sources are used, and the central axis of the laser returned along the original path is determined, so that the problem of vertical alignment when measuring residual stress by using a small hole to measure residual stress on the surface of a water turbine or a turbine blade is solved, the direction of the perpendicular line of an arbitrary plane is conveniently determined, the perpendicular line of a small plane (with a diameter of more than 20 mm) can be determined without gravity, the technical principle and structure are simple, and the operation is convenient.

The utility model provides a kind of subway track geometric dimension rapid measuring device, including support plate, the upper surface of support plate is fixedly connected with fixed plate, rotationally connected with screw rod between two fixed plates, the outer surface of screw rod is threadedly connected with movable seat, the upper surface of movable seat is fixedly connected with first hydraulic telescopic rod, and the telescopic end of first hydraulic telescopic rod is fixedly connected with movable plate;Measuring instrument is fixedly connected on the upper surface of movable plate, and measuring instrument includes laser radar module, vision enhancement module and inertial measurement module.The utility model can flexibly adjust the horizontal position and height of measuring instrument, solve the problem that traditional device cannot adjust height and lead to insufficient measurement accuracy, meet the multi-dimensional measurement demand under different track scenes, and measuring instrument is set with laser radar module, vision enhancement module and inertial measurement module, meet the high-precision requirement of subway track geometric dimension measurement.

This application discloses a surface profile measurement method, apparatus, device, storage medium, and product, relating to the field of optical surface measurement technology. The surface profile measurement method includes: irradiating a target light beam onto a dispersive confocal lens, separating light rays of different wavelengths in the target light beam through the dispersive confocal lens; controlling a two-axis motion platform to move the surface to be measured to different preset sampling points, and collecting the reflected signals obtained by the light irradiating the surface to be measured point by point; determining the target signal with the strongest signal among the reflected signals, and determining the distance between the surface to be measured and the dispersive confocal lens based on the wavelength corresponding to the target signal; determining the point cloud of the surface to be measured based on the distance, fitting the point cloud of the surface to be measured to obtain the fitted planar profile, and measuring the surface profile of the fitted planar profile to obtain the measurement result. This application does not require operators to have a high level of technical expertise, reducing the difficulty of use.

The application relates to the field of measuring tools, in particular to a radial play measuring instrument for a lead screw, which comprises a base, a clamping assembly and a measuring assembly. The clamping assembly is connected to the base, and the clamping assembly can clamp the two ends of the lead screw to form positioning. The measuring assembly comprises a measuring seat, a pressing top rod and a measuring table. The measuring seat is slidingly connected to the surface of the base, the sliding direction of the measuring seat is parallel to the axis of the lead screw, one end of the pressing top rod is threadedly connected to the surface of the measuring seat facing the lead screw, the other end of the pressing top rod can abut against the surface of the lead screw to form limiting, and the measuring table is connected to the surface of the measuring seat. The measuring end of the measuring table can abut against the surface of the lead screw and perform radial play measurement. In the application, the measuring seat, the pressing top rod and the measuring table are arranged, the measuring end of the measuring table performs radial play measurement on the surface of the lead screw, the radial play of each position of the lead screw is measured, and the measuring force can be regulated according to the design requirements, so that the accuracy of the radial play measurement of the lead screw is improved.

The present invention provides an image forming apparatus capable of detecting scratches and dirt on the intermediate transfer belt, as well as performance degradation of the cleaning brush. [Solution] The image forming apparatus comprises an image carrier, a charging device, an exposure device, a developing device, an intermediate transfer belt, a cleaning brush, an image density sensor, and a control unit. The control unit is capable of executing a cleaning performance determination mode for determining the cleaning performance of the cleaning brush. The cleaning performance determination mode includes a reference image formation step of forming a reference image on the intermediate transfer belt, and a first surface measurement step of detecting the formation area of ​​the reference image with the image density sensor after the intermediate transfer belt has completed one rotation. When the fluctuation range of the output value of the image density sensor in the first surface measurement step is less than or equal to a threshold, it is determined that the cleaning performance of the cleaning brush is normal.

A method of inspecting a flexural strength of a glass including a folding area of a display apparatus includes a sample glass surface measurement operation of measuring a three-dimensional shape of a surface of each of a plurality of sample glasses, a sample glass curvature variable calculation operation of calculating a plurality of curvature variables of each of the plurality of sample glasses based on an information measured in the sample glass surface measurement operation, a sample glass flexural strength measurement operation of measuring a flexural strength of each of the plurality of sample glasses, a data analysis operation including a relational expression generation operation of generating a relational expression between the plurality of curvature variables and the flexural strength, and a flexural strength prediction operation of predicting a flexural strength of a target glass based on the relational expression.

This invention relates to the field of precision measuring instruments, and discloses a high-precision roller spherical base surface measuring device and method. The high-precision roller spherical base surface measuring device includes: a measuring instrument body, a measuring head mounted on the measuring instrument body, a clamping mechanism, an identification measuring mechanism, and a control terminal; the clamping mechanism includes: a clamping component, a rotation drive component, and a pre-support component. The clamping component is mainly used to clamp the roller to be measured, and the rotation drive component is connected to the clamping component, mainly used to drive the clamped roller to rotate around a theoretical axis. This invention automatically identifies the roller size and determines the optimal clamping parameters through machine vision, and combines three-dimensional scanning to calibrate the clamping posture in real time. It can dynamically generate an adaptive measurement path based on the measured deviation, effectively solving the system error problem caused by inconsistent clamping in traditional measurements, significantly shortening the measurement time for a single piece, and achieving efficient and reliable measurement of the tapered roller spherical base surface with micron-level accuracy.

The utility model relates to the technical field of metal processing, in particular to metal curved surface constant-pressure self-adaptive grinding equipment which comprises a base, a first groove, a second groove and a third groove are formed in the top of the base, four supporting columns are fixedly connected to the top of the base, and a top plate is fixedly connected to the tops of the four supporting columns; the detection unit is arranged at the top of the base, the detection unit comprises a contact piece, a detection rod and a detector, and the contact piece is matched with the detection rod and the detector and used for detecting the curvature of the metal curved surface; the grinding unit is arranged at the top of the base, the grinding unit comprises a driving part and a grinding wheel, the driving part and the grinding wheel are matched and used for grinding the metal curved surface, the constant-pressure self-adaptive grinding equipment for the metal curved surface can maintain constant-pressure grinding, closed-loop operation from curved surface measurement to constant-pressure grinding is achieved in the process, and the grinding efficiency is improved. And high precision and consistency of metal curved surface polishing are ensured.

This invention provides a strength testing device for tire-reinforced roadbeds, relating to the field of material testing technology by measuring the physical properties of materials. The device includes an embedded component, a sensing component, a testing component, and a reference component. The embedded component is pre-embedded at a designated location in the roadbed area to be filled. Both the sensing component and the embedded component are located inside the already filled roadbed. After the roadbed filling is completed, the sensor component is detachably connected to the top of the embedded component and located outside the roadbed. The reference component is detachably connected to the testing component and contains a roadbed filling sample, which has been laboratory tested and possesses known strength characteristics. This invention solves the problem in existing technologies where only surface measurements are performed, making real-time deformation monitoring of different depths and material layers within the roadbed impossible, resulting in limited test results and safety hazards for tire-reinforced roadbeds.

The application provides a height map generation method and device based on galvanometer scanning and top camera cooperation, a storage medium and computer equipment. The method comprises the following steps: controlling a galvanometer to scan a preset structured light pattern on a workpiece surface at a preset power; the preset power is less than a laser processing power; the structured light pattern is a grid pattern or a phase shift fringe pattern; controlling a top camera to collect a deformation image formed by the structured light pattern on the workpiece surface; obtaining pre-stored system calibration information; the system calibration information comprises parameters of the top camera, a scanning model of the galvanometer, and a coordinate mapping relationship between the top camera and the galvanometer; based on the deformation image and the system calibration information, using a curved surface inversion algorithm to solve height information of each point on the workpiece surface, and obtaining a height map of the workpiece surface. The application can reuse the existing galvanometer and top camera of a laser processing device to complete curved surface measurement, and quickly and accurately generate a height map.

The application discloses a laser precision positioning system with a large longitudinal depth ratio and a measuring method, and belongs to the field of laser micro-nano measurement. The method determines the distance by using laser to detect the light intensity peak of the reflected light of the surface of a measured object at a focal point, carries out closed-loop feedback control algorithm by collecting distance data, carries out geometric modeling and fitting by using a three-dimensional reconstruction method, realizes precise positioning of a sample with a large longitudinal depth ratio, and carries out high-precision measurement. The method solves the problem that it is difficult to measure the micro-nano scale of a complex sample with a large longitudinal depth ratio in a traditional laser micro-nano manufacturing process. The application realizes precise positioning of a sample with a large longitudinal depth by using a dynamic adjustment method, supports high-precision measurement requirements, avoids the problem that it is difficult to realize complex surface measurement in the sample measurement process by means of optical nondestructive ranging and dynamic displacement adjustment.

The utility model discloses a kind of construction engineering construction detection devices. Construction engineering construction detection device includes: support frame, the lower side of the support frame is connected with the connection box, the upper side of the connection box is provided with horizontal component, the upper side of the horizontal component is connected with power supply, the side of the power supply is connected with wall surface measurement component, the side of the connection box close to wall surface measurement component is provided with recess, it is convenient for wall surface measurement component to carry out measurement work, the lower side of the horizontal component is connected with ground measurement component, the inside of the connection box is provided with moving component, the lower side of the connection box is fixedly connected with a group of support rod, the bottom of the support rod is fixedly provided with transparent footrest respectively. The construction engineering construction detection device provided by the utility model is easy to operate, the range of detection is larger, the efficiency is higher, and after horizontal correction, the data is also more accurate, and observation operation is also more convenient.